Anticreeping device.



W. R. DIEHL.

ANTICREEPIN G DEVICE.

APPLICATION FILED DEC. 19, l9l6. I

Patented Sept, 25, 1917.

t\ IV/ III/MINNIE] FIG. 4

W INVENTOR @M I WW 91M WALTER R. DIEI-IL, 0F PITTSBURGH,PENNSYLVANIA.

ANTICREEPING DEVICE.

Specification of Letters Patent.

Patented Sept. 25, 1917;

Applicationfiled December 19, 1916. SerialNo. 137,767. 2 H

To all whom it'may concern.-

Be it known that I, VALTER R. DIEH-L, a citizen of the United States, and a resident of Pittsburgh, Allegheny county, Pennsylvania, have inventeda new and useful Improvement in Anticreeping Devices, of which the following is a specification.

This invention relates to an anti-creeping device for railway rails.

i The object of the invention is to provide an anti-creeping device which. is simple in its construction and cheap and easy to manufacture, and which acts instantaneously and positively to prevent the creeping of a railway rail in either direction 1ongitudinally of the rail. A further object of the invention is to provide in a device of the character described a rocker member or dog for preventing'creeping of the rail, and a tie-plate so arranged as to hold the rocker member in operative position with respect to the rail without the use of springs or other means for maintaining the contact be tween the rail and rocker member. A still further object of the invention isto so pro-' portion and arrange the rocker member and its supporting means that the rocker member is completely inclosed by the supporting means and the rail and thus protected from displacement or rusting.

In the accompanying drawings, Figure 1.

is a cross section through a railway rail and longitudinal section through a steeltie, showing the anti-creeping device in position. Fig. 2 is a plan view of a steel tie embodying the anti-creeping device of the present invention; Fig. 3 is a cross section through atie on the line 3-3 Fig. 2, show ing the anti-creeping device in operative engagement with the under surface of the rail; Fig. l is a plan'view of a tie-plate for use with wooden ties and embodying the device of the present invention; Fig. 5 is an enlarged cross sectional view of the rocker member of the anti-creeping device; and Fig. 6 is a diagrammatic side elevation of the same.

The rocker member or dog 1 is, as shown,

of the general form of an equilateral triangle and is arranged to be supported in a suitable recess in inverted position in such manner that it may normally rock in either direction upon its apex as an axis of rotation. The rocker member 1 isarrang'ed to extend transversely of the rail and preferably a substantial part of the width thereof.

As shown in Figs. 1 to 3 inclusive, a steel tie 2 is provided with an indented or recessed portion 3 extending transversely of the rail and in which the rocker member 1 rests. The rocker member is preferably blunted along its lower extremity as by means of a longitudinal bead' l so that it may rest in the recessed portion 3 without cutting of this portion under pressure from above, and along its uppersurface is provided with. a longitudinalv concavity arranged to form horns 5, 5 at the opposite edges of the upper surface. When the railway rail 6 is placed in position with the rocker member lying in the recess in the tie, the horns 5, 5 which are preferably made sharp, though preferably not brought to a knife edge, will tend to bite slightly into the skin of the under surface ofthe rail, thus securing a positive engagement between the rail and anti-creeping device, the rocker member 1 being preferably formed of a steel which is hard enough to provide this slight cutting action, while also possessing sufficient toughness to withstand the crushing stress incurredwhile the rail is being forced into position. The form and rigidity of the supporting means for, the rocker member hold it firmly in position during laying of the rail, so that this biting action is readily effectech It will be apparent that when once the rail is in position on'- the tie, the rocker member will not be called upon to support any of the weight of the rail, since the cutting action of the horns 5, 5 will readily bring the rocker member into adjusted position with the horns extending into the shallow grooves on the under portion of the rail which they trated by referring to Fig. 5 of the drawings. With the parts in operative position, if the rail 6 tends to creep in the direction of thevarrow A, the rocker member will tend to rotate in such manner as to lower thehorn 5 and to raise the horn 5. Since no room for such rotation is provided, the tendency of the horn 5 to rise serves to se cure the rail against this creeping. move ment, Ifthere' is a tendency for the rail to creep in the direction ofthe arrow B Fig. 5, the tendency to rotation of the rocker member, which is to so rotate as to raise the horn 5 will likewise serve to prevent creeping of the rail in that direction. It will be.

seen that the arrangement and proportioning of the recess. 3, and the rockermember,

l is such that it isimpossib le for the rocker member to be so displaced as to bring either orboth of its edges 5, 5" out-of contact with the under surface of the ra l; and because of'the construction of the upper surface of the rocker member, providing thesehorns or edges, the action of the device s posltive' and practically instantaneous, since the horns '5, 5,ten'd to rotate through an arc of deeply into'the rail along the are as shown in Fig. .5' of the drawings;

The" device remains operative for so long. aperiod oftime as the tie remains in con-' dition folservice, sincethe Wear 'on the. rocker member 1 is compensated for by the wear between the upper surface of the tie and the'under surface of the rail, and a. mutual settling ,of the tie and rail will not affect "the relative position of the rocker member. Itwill also be observed that the rocker'member lis completely inclosed be I tween the recess 3 of the tie and the under surface of the rail 6 so that it is protected from rust or fromwe'ar due to dust or grit. As. illustrated 'in ;Fig. 4:, the invention may be employed withthe ordinary formof tie-plate used with wooden railway cross ties In such case thetie-plate 8 is cast-to provide a recess 3 'similarto that in the steel tie Zand the rocker member l-is placed in this recess which extends transversely of the rail. Theactionof the device in such caseis similar in all respects to that obtained ,with the use of a steel cross tie.

The advantages which'th'e 'presentinven-f tion provides over prior devices of a somewhatsimilar nature lie in'the employment of a recessin the body of a steel cross tie or tie-plate, without'theuse of special devices or extensions for supporting the rocker.

member, and in I. the construction of, the rocker member itself. Thls constructlon of the rocker member as shown, causes an in- H stantaneous and pos tlve response to any tendencyto'ward creeping ofthe rail, since an increased radius of. rotation. is provided by the use ofa narrow rocking base. and

Widely spaced points of contact with theunder surface of the rail.- The formation of. thesharpedges of the horns also renders the action more positive since the rockermemher is caused to bite slightly into the rail during the placing of the latter; The formation of therecess and the construction of'the rails comprising a rocker member extending transversely of the rail and having a 0011-. cave upper surface, andmeansfor supporting s'aidmemb'er and normally maintaining it in contact-with the under surface of the. rail. y

2. An anti-creeping devicefor railway rails comprising a rocker. member extending transversely of the rail and provided at the edges of its upper surface-With parallel. horns extending throughout the length. of saidmember, and means for sup portingsaid member and maintaining the hornsthereof normally in contact with theunder surface, ofthe rail. Y v

3. An anti-creeping devicev for railway rails comprising a rocker. member. arranged to extend transversely of the rail and provided on its upper surface with 'sharp railengaging means, and rigidmeans for maintaining said rail-engagingmeans .in contact with the under. surface of the. trail, said rocker. member and supportingnieans being so arranged that tendency of, thefrail to.

creep in either, longitudinal direction will be met and checked by the consequent tend ency to rotation ofthe rockermember.

I 4. An anti-creeping device for railway rails comprising a rockermember and sup: porting means therefor, said rocker member being. supported on a relatively narrow base and having a relatively broadupper-surface havingedges arrangedto engage the. under" surface of the rail, and said supporting.

means being so arranged as to permit rota tion of the rocker member 111 either threetion longitudinally of the rail and to pre:

. vent displacementof the upper edges there.

of from contact withthe under surface. of the rail. I I 115 5. An anti-creeping device. for, railway. rails comprising a rocker member and means for inclosingand supp ortingthe' same, said rocker member being supported on a ,relatively narrowbase and having a relativelybroad upper surface having edges arranged to engage the under surface of the rail, and said supporting means being so arranged as to permit rotation of the rocker member. in

either direction longitudinally of 'th mfl 1.2 5

and to prevent displacement of the upper; edges thereof from contact withthe, under surface of the rail. f i v' i 6. An anti-creeping device for railway, rails comprising a rocker member, and a l30 rigid rail supporting member provided with a transverse recess in the body thereof arranged to inclose and support said rocker member in contact with the under surface of the rail, said rocker member and recessed supporting member being so arranged as to resist movement of the rail in either direction longitudinally thereof.

7. An anti-creeping device for railway rails comprising a rocker member, and a rigid rail supporting member provided With a transverse seat arranged to inclose and to support said rocker member in contact W1th the under surface of the rail, sa1d rocker member and supporting member being so 15 arranged as to resist movement of the rail in either direction longitudinally thereof.

In Witness whereof, I have hereunto set Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

